(1).5.03-2.5+0.96 (2).22.8-5.23-9.125 (3). 23.66+4.34-3.56 (4).67.2+41.5-71.39 (5).10.75+0.4-9.473 (6).16.23+8.92-7.56 (7).50-28.5-13.45 (8).15.9+3.26+4.17 (9).13.79-9.653+170.57 (10).1.5+0.68-0.306 (11). 72.8-8.6+5.84 (12).5.6-0.81-1.29 (13).20.8-(15.98-3.9)(14).32.5+(5.07+6.13)(15).3.52-(4.66-3.82)(16).32.5+(5.07+6.13(17).9.43-(8.65+0.40) (18).4.6+12.3+5.8 (19).15-(1.3+3.9) (20).4.6-1.75+2.08 (21). 5-(4.19-2.83) (22).7.41-(2.96+3.04) (23).4.28+0.53-3.37 (24).3.2+1.27-2.49 (25).1.54+2.08+3.62 (26). 9.5+4.85-6.36 (27).5.6+2.7+4.4 (28).4.6-(1.75+2.08) (29).4.02-3.5+0.98 (30).70.8-1.25-1.75 (31). 5-4.19+2.83(32).3.8+1.4–2.35(33).18.3–3.6–4.4(34).6.86–(2.19+1.86)(35).5.3+12.38+4.7(补). 3.3+5.06-3.03小数加减简便运算(脱式计算)(36).0.9+1.08+0.92+0.1 (37). 5.26+3.43+0.74 (37)(38).5.6+2.7+4.4 (39).48.14-2.43-7.57 (40).18.76-3.47-0.53 (41).5.17-1.8-3.2 (42). 51.27-8.66-1.34 (43).30.99-(8.5+15.99)(44).4.02-3.5+0.98 (45).4.25-0.83+0.75 (46).23.04-0.8-13.04-6.2(47). 0.15+7.62+7.85(48).15.13+4.92-5.13 (49).3.98-1.5+6.02 (50).4.8+1.2-4.8+1.2 (51).36.06-(5+6.06)(52).6.07+(6.7-0.07)(53).6.37-5.6+3.63